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MRCOOL DIY 4th Gen Multi-Zone 2-Zone 18,000 BTU 21 SEER (9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump

MRCOOL DIY 4th Gen Multi-Zone 2-Zone 18,000 BTU 21 SEER (9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump
Starting at $176/mo or 0% APR with . See if you qualify
Save 23% Save 6%
$2,994.00
$2,994.00 - $4,624.00
$2,994.00
$2,818.00
$2,818.00 - $4,624.00
$2,818.00
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Line Set for Air Handler 9K: 16 Ft
Line Set for Air Handler 12K: 16 Ft

DIY 4th Gen Multi-Zone 2-Zone 18,000 BTU 21 SEER (9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump

The MRCOOL DIY 4th Gen Multi-Zone 18,000 BTU Ductless Heat Pump System offers an easy and cost-effective way to heat or cool two separate zones without requiring special tools or professional installation. With a 21 SEER efficiency rating, this system delivers 18,000 BTU capacity through two indoor air handlers—a 9,000 BTU unit for spaces up to 350 sq. ft. and a 12,000 BTU unit for areas up to 550 sq. ft.. As a heat pump, it efficiently operates in reverse to extract warmth from the outdoors during heating mode, making it a year-round comfort solution. The system is backed by a 7-year compressor warranty and a 5-year parts warranty, ensuring long-term reliability.

Designed for ultimate convenience, this system provides cooling in summer, heating in winter, and dehumidification during humid months. It features an easy-to-read digital display and full smart home integration via the MRCOOL Smart Controller app, Amazon Alexa, and Google Home. Each indoor unit includes directional airflow control, ensuring even air distribution for optimal comfort. For forced cooling, the manual mode allows users to override settings for emergency operation, while auto mode intelligently adjusts temperature based on user preferences.

For added energy efficiency, Sleep Mode conserves power during an 8-hour cycle, while the timer function lets users schedule heating or cooling periods to minimize energy waste. The troubleshooting display provides error codes and maintenance alerts, including low refrigerant warnings and filter cleaning reminders. The mute function lets you silence alerts and dim LED lights for a distraction-free environment. In the event of a power outage, the system will automatically restart with its previous settings.

The MRCOOL DIY Multi-Zone 18,000 BTU Ductless Heat Pump System is the perfect blend of power, efficiency, and smart technology, delivering personalized comfort without the hassle of professional installation.


MRCOOL 4th Gen DIY 18k BTU 2-Zone (9K + 12K) Mini Split Specs & Features

  • Easy DIY® Installation
  • "Pre-charged DIY®
  • Quick Connect Line Set
  • Simple to Use
  • Multi-room Comfort
  • Energy Efficient DC Inverter
  • 100% Sealed System
  • Gold Fin® Condenser
  • Eco Safe R-410A Refrigerant
  • Smartphone App Controls
  • Lifetime Technical Support
  • Follow Me® Feature
  • Low Ambient Cooling
  • SEER: 21
  • EER: 12.5
  • Cooling Capacity (BTU): 18000
  • Heating Capacity (BTU): 19000
  • Voltage: 208-230 V
  • Phase: 1
  • Cycle: 60 Hz
  • Max Fuse Breaker: 25A
  • Min Circuit Ampacity: 18A
  • Zone Capacity: 2
  • Refrigerant Type: R-410A
  • Compressor Motor Type: Twin - Rotary
  • Min Ambient Cool: 5F ~ 122F
  • Min Ambient Heat: -13F ~ 75.2F
  • Inner Dimensions: 26.50" H x 13.46" D x 35.04" W
  • Outer Dimensions: 29.33" H x 17.64" D x 40.94" W
  • Weight: 111.11 lbs

Your Satisfaction with MRCOOL is Guaranteed:

  • 5 Year Parts Warranty, 7 Year Compressor Warranty
  • Lowest Price Guarantee